AP101 4R3 J

Through Hole Resistors

A through hole resistor is one of the most common types of resistors used in circuit boards. It is a resistor with two metal leads which are inserted in holes pre-drilled in the board\'s substrate, and then through-soldered to provide for electrical connections. Through hole resistors are one of the most mature components in the electronics industry, having been used for many years. They are typically cylindrical in shape, and smaller resistors may be axial, with leads extending out of each end. The most popular models are rectangular in shape and are known as surface mount resistors.

AP101 4R3 J Application Field and Working Principle

The AP101 4R3 J through hole resistor is designed for high-intensity signal applications and is optimized for radios, telephones and computer networks. It has a rated temperature of 55°C and a power rating of 0.5W. The resistance value of this resistor is 4.3 ohms. The maximum allowable operating temperature of this resistor is 125°C.

The working principle of the AP101 4R3 J through hole resistor is that it impedes the flow of electric current. This is achieved by inserting a material with a specific resistance value into the circuitry. Copper, nickel and aluminum are all materials with good electrical conductivity and can be used, but more reliable results are usually achieved with other materials. Most resistors are composed of a combination of different materials, such as carbon, ceramics, conductive plastics and metallic oxides. When current flows through them, friction generates heat, a phenomenon known as Joule’s law.

The AP101 4R3 J through hole resistor is useful for applications where low resistance, high reliability and low cost are important. It can be used in power supply lines for medical, industrial and military applications. They are also used as current limiters, noise filters and over-current protection devices. They are often used to form a voltage divider circuit, which is useful for gauging the level of electric signals.